Free Water KO Drum Flow Assurance

The key to Free Water KO Drums is a combination of a large separation volume coupled to a long residence time. The result is a high degree of separation. However, during the life of a well the amount of produced water can increase considerably. This leads to the need to revamp the internals as shown in the following before and after study.

Above: This graphic shows droplet re-entrainment in the gas phase and the localized overloading of the mesh pad demister. Below: The revamped gas box with 20, 4G-FD® Demisting Cyclones facing the vessel's inlet. The revamp CFD model included the swirl in each cyclone.